package servlet;

import pojo.Dept;
import service.DeptService;
import service.Impl.DeptServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;

@WebServlet(urlPatterns = {"/dept"})
public class DeptServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doPost(req, resp);
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        DeptService deptservice=new DeptServiceImpl();
        req.setCharacterEncoding("utf-8");
        String action=req.getParameter("action");
        if("list".equals(action)){
            String dname=req.getParameter("dname");

//            int id=Integer.parseInt(sid);
            Dept condition=new Dept(dname);
            List<Dept> depts=deptservice.findAll(condition);

            req.setAttribute("depts",depts);
            req.setAttribute("condition",condition);
            req.getRequestDispatcher("/list.jsp").forward(req,resp);
        }else if("add".equals(action)){
            String dname=req.getParameter("dname");

            int result=deptservice.addDept(dname);
            if(result>0){
                resp.sendRedirect("dept?action=list");
            }
        }else if("delete".equals(action)){
            String sid = req.getParameter("id");//和页面的id属性保持一致

            Integer id=Integer.parseInt(sid);

            int result=deptservice.deleteDeptById(id);
            if(result>0){
                resp.sendRedirect("dept?action=list");
            }

        }else if("toupdate".equals(action)){
            String sid = req.getParameter("id");//和页面的id属性保持一致

            Integer id=Integer.parseInt(sid);

            Dept dept=deptservice.findById(id);

            req.setAttribute("dept",dept);
            req.getRequestDispatcher("update.jsp").forward(req,resp);
        }else if("update".equals(action)){
            String sid = req.getParameter("id");
            Integer id=Integer.parseInt(sid);
            String dname = req.getParameter("dname");
            int result=deptservice.updateDept(new Dept(id,dname));
            if(result>0){
                resp.sendRedirect("dept?action=list");
            }
        }
    }
}
